The Neverending Story by Michael Ende – the book is NOTHING like the horrible movie that they made when I was a kid. It is brilliant, and if you can find it in its original red and green print, you’re very lucky.
The Parasol Protectorate series by Gail Carriger – I love this series. It’s well written, and has a very original idea behind it.
Harry Potter series by JK Rowling
Know what? No, what? by Arlene and John Baum – This children’s book is now out of print, but it was my favorite as a child, and it’s my favorite to read to my kids. I found a very beat up copy at a book sale, but no matter the state it’s in I’m glad to have it.
Lots, lots more. I could make a list of books 30 pages long and not list all the books I’ve read and enjoyed over the years. There are just too many to mention. These are just a few of my favorites.